Oil burning heating apparatus



Aug 20, 1940. R.c. sABlNs OILV BURNING HEATING APPARATUS -Filed Aug. 1l, 1938 s 4 m n M W .1 a im a, A .nu i V M 9M/ow C Y* mw x/ 1M .4., r m 9 l H Z l! fr 1w! 7 xl'. wia Ww 2 1.- O 4M, w f1 m 5 @N9 nJH0n0F/- OJ w 9X/ o h/w i x/ s Y oo oNi v Rh* @flow @9N 1%/ @X/ wmuuuou Y Z I E n. l/ naf m i /5 w .i A4 l I A C e l o n YPatented 20,

PATENT orificr.

2,212,018 on. BURNTNG HEATING APPARATUS Rolland C. Sabins, Dupuyer,

Albert one-half to Charles Mont. f

Mont., assignor of y Akofer, Valier,

Application August 11, 1938,. serai No. 224,344. s ciaims. (c1, a-91) My invention relates to improvements in oil Vburning heating apparatus and particularly` to oil burners, an object thereof being to provide a highly efficient and contrastedly inexpensive oil burner of the pot-type which is light in weight and readily adaptable to the various uses to which Y such burners are put.

A further object of the invention is to provide a burner of the present nature constructed principallyof sheet metal, the parts being designed so that they mayl be rapidly and inexpensively constructed and likewise assembled to complete the structure.

A further object of the invention' is to enhance the safety of burners of the present type by providing a burner in which a minimum quantity of accidentally accumulated oil will operate, through the medium of conventional feeding equipment, to cutoff the supply of oil to the burner.

' Another object of the invention is to provide an oil burner of 'the pot-type designed efficiently to maintain theburner flames in each stage of a relatively great range of stages.' Y

With theforegoing and other objects in view, which will appear in the following description, the invention resides in the novel combination and' arrangement of parts and in the details of construction hereinafter described and claimed.

In the drawing, Fig. 1 is mainly a vertical cen` tral sectional view of a heating appliance in which is incorporated an. oil burner of the pot-type embodying my present invention, said 'burner hil) being 'shown in elevation, and Eig. 2 is an enlarged fragmentary view of the 4burner structure shown in Fig. 1, the same being illustrated-in vertical section, centrally thereof.`v

Referring to the drawing in which similar. reference characters designate similar parts throughout the several views, it willl be observed that the illustrated heating appliance includes a heating drum A supported Von legs I0, said drum vhaving an upright cylindrical body II, a top I2, v abottoxn I3 anda horizontal partition I4 between said top and bottom.v At the upper portion of the drum body II is a flue collar I5 with which a stove pipe (not'shown) is attached in theusual manner. Beneath this ue collar I5 and above the horizontal partition IB, the drum body II is.

. opening IE and provided with an access opening I6, said open-V ing being normally closed by a door I1 hingedly mounted on a door frame I8 encompassing said attached to said drum body. l

of my present invention, by the reference letter '.B,

The pot-like burner indicated in its entirety isshown-as disposed between the bottom I3 and well `c consists of partition vI4 of the drum A, said burner resting on said bottom I3, while the 'mouth I9 thereof opens into the upper portionA of lthe drum through a central'opening 20 in said partition I4.

The burner B, preferably formed entirely oi 5 sheet metal, includes a generating well c, body d, head e and an internal bale f.- The generating an upright cylindrical wall 2I,

22 and a second bottoni 23, spaced from said first bottom through the 10 medium of an annular connecting iiange 2|, said bottoms 22 and 23 being spaced apart to provide a heat insulating air space 25 therebetween for the purpose of preventing the dissipation of heat from the inner bottom 22. Near said inner bot- 15 tom 22. the wall 2I of the generating well c is fitted with a coupling 26 to receive a pipe l21V for` oii- About the a bottom proper 2l thereof is formed with a multiplicity of air 20 openings 28 which admit combustion supporting air to said Well.

The body d of the burner B is hopper-like in. form and includes a wall portion 29 flaring outf wardly and upwardly from the wall 2 I of the geii-4 25 {erating well c, there being in continuation of said naring wall portion 29 an upright cylindrical wall portion V30 terminating in a horizontally disposed annular ange 3|. This flaring wall portion 29 has a multiplicity of air admitting openings 32 formed therein. Said openings may consist simply of dief-formed apertures, but preferably are produced, as illustrated, by forming louvers 33 in the flaring wall portion 29. In either case, the axes of the openings 32 are directed `horizontally in ,a radial direction throught the The annular vabout the same, these apertures, as shown, being 45 provided by forming louvers 36 in said baiiie. The head e of the burner B includes a cylindrical wall portion 31 formed with a horizontal footing flange 38 bearing upon the outer marginal portion ofthel baiile f which is seated upon the horizontal flange 50 3| of the body d.` This footing ange 38 is crimped aroundthe bame f and also around the flange 3| on the body d rigidly to unite said body d, baille f and head e in unittary fashion. In upward 'and inward continua on of said wall porg5.

' mouth I9 of'the burner, said mouth and the ing the flow of oil ssh - thereof and in this opening 34 of the baille ,f and said generating well c being co-axially disposed; As shown, this short vertical ange on the burner head e is snugly received in the burner opening 20 in the partition I4 of the heating apparatus to which the burner is applied. Y

The fuel oil pipe 21 may be connected with any suitable source of supply and regulation of the flow-of oil therethrough to the generating well c may be effected .in any suitable manner selectively to produce high 0r low flame or names at various intermediate stages. In the drawing Ihave illustrated a fuel supply tank 4I supported by straps 42 secured to the drum wall Il of the heating appliance. The supply pipe 21 leading to the generating well c of the burner B is connected with this tank 4l at the bottom pipe 2,1 is fltted a metering valve 43 of conventional construction for regulatinto the burner. Interposed between the drum wall Il and tank 4| andsupported by the tank supporting straps 42 is a guard 44 shielding said tank from the heat radiating from said wall. A

The bottom I3 of the heating drum supplies a footingfor the supporting flange 24 of the well c, said bottom `It' having a plurality of openings 4I therein lfor admitting air to the burner B.

In operation, liquid fuel is admitted to the ywell c of my burner by opening' the metering valve 43 more or less according to the existing eating requirements, such fuel, of course, being ignited to start the initial generatiomof gases to be burned. This generation of gases initiallyandin the continued operation of the burner is enhanced by reason of the relatively small diam- A eter o f the well c' into which the liquid fuel is admitted and by reason of .the heat insulated bottom oi the well structure which retains the heat in such structure 'for generating purposes. Employing a conventional metering valve having a number of settings ranging from a minimum low setting to a maximum high setting, the feeding of liquid fuel into the well c of the burner is regulated to produce flames of varying sizes. At the low setting of the metering valve 43, a flame of minimum size is produced, the same burning in the region of the mouth ofsaid well c and receiving its combustion supporting air from the openings 28 in the wall!! of said well. As the settings of the metering valve 43 are advanced,

proportionately larger the burner flames are correspondingly increased in size, the outward flaring of the louvered burner body d affording proportionately increasing diametrical capacity for said names as theyI grow upon advancing the metering valve setting. At all stages of the burner name, the louvered baille f functions to return.v

heated gases, burned and/or unburned, from the .outer annular portion of the space within the burner head e tothe interior of the burner body d with the result that the'eftlcient burning of then gases beneath the baille f is insured and with the further result that the llame characteristics at`4 all settings of the metering valve 43 remain substantially constant. In other words, the fuel gases are completely burned in the flames, which, though of different sizes, have substantially the same color and substantially the same patterns symmetrically shaped relative to the axis of the I burner.

The herein indicated `advantages .residing in upper portion thereof, a

'said body stantially horizontally in cylindrical wall being cient operation. r Changes in the specic form of my invention,

as herein disclosed, maybe made within the scopeof what is claimed without'departing from the spirit of my invention.

` Having described` my invention,what I claim as new and desire to protect by'Letters Patent' is:

1.- In a burner fof 'the-pot-type,'a generating well having air admitting openings in the upper portion thereof, abody flaring outwardly and upwardly from said well andfforme'd with air admitting openings therein about the same and at different elevations,a head inupward continuation of said body, said head being.' flared inwardly. and upwardly at its upper portion said head and having a central opening; therein" forming the mouth ofthe burner, an annular bame disposed wholly within the combustion.- chamber ared upwardly and inwardly and-apertured about the opening therein for the return of gases of high temperature to the interior of the burner body.

2. In a burner ofthe pot-type, a body flaring outwardly and upwardly and formed with louvered air admitting openings therein about the same, and at different elevations', a head in the equivalent of any-of a plurality of forming a combustion chamber, said head zo wholly within the combustion chamber flared upwardly `and inwardly and provided with louvered openings therein for the return of gases of high temperature to the interior of the burner bdy, the axes of said louvered openings in said body and baille extending substantially horizontally in radial disposition with respect to the .vertical axis of the burner structure.

3. In a pot-type burner, a vaporizing well having air admitting openings about the same in the body flaring outwardly andupwardly from said well and formed with air admitting .openings therein at different elevations about the same, afhead in continuation of said body having a central mouth forming opening therein, an annular baille within the burner structure inwardly and upwardly inclined therein, said baille being formed with marginal openings about the same for returning gases of high I 1 temperature .from the interior of .the burner head to the interior of the burner body, and means for introducing fuel oil into4 the well of `the burner, said well, body and head having a common vertical axis, said air admitting openings in and the marginal openings in said baille being arranged to direct the eway therethrough respectively, of air and gases subl radial directions relative to said common vertical axis.

4; In a burner of the pot-type, a generating well, an annular wall extending outwardly fromsaidwell and formed with'air admitting openings therein, a cylindrical wallstructure extending upwardly f roml said annular wall, a second an'- nular Wall extending inwardly from the uppermost portion of said cylindrical wall structure and having a-central opening therein forming the mouth of the burner, an'd an annular baule within the burner disposed intermediate the rst and second named annular walls and extending inwardly from the cylindrical wall structure, said imperforate above said ture, said baie, the central opening in said baille being concentric with the mouth of the burner, said baiiie having return openings therein intermediate the central opening andthe cylindrical wall strucreturn opening being beneath said second annular wall outside of the vertical connes of the mouth-forming Aopening therein.

5. In a burner of the pot-type, a generating well having air admitting openings in the upper portion thereof, an annular wall iiaring outwardly'and upwardly from said well and formed an' imperforate cylindrical wall structure extending upwardly from said aring wall, a second annular wall aring inwardly and upwardlyfrom the uppermost portion of said cylindrical wall strucopening therein forming opening therein. v ROLLAND C. SABINS. 15 

